Sash-lock.



`Patented Mar. I3

u. TRANS-UE.

S A S H L 0 C K (Application med sept. 2o, xse.

(No Model.)

Msi I" Hliigasses Tm: Nonms PETERS co. Pnoraumo.. wAsHmsroN. n. c.

UNITED STATESv PATENT rrrcn.

URIAH TRANSUE, OF MINSI, PENNSYLVANIA, ASSIGNOR OF ONE-THIRD TO TIIEODORE B. DRAKE, OF EAST STROUDSBURG, PENNSYLVANIA.

sAsH-LocK.

SPECIFICATION forming part of Letters Patent No. 645,441, dated March 13, 1900. Application filed September 20J 1899. Serial No. 731,115. (No model.)

To LZZ whom it may concern.-

Beit known that I, URIAH TRANSU E, a citizen of the United States, residing at Minsi, in the county of Monroe and State of Pennsylvania,have invented anew and useful Sash-Lock, of which the following is a specification.

This invention relates to window-sashes of that class embodying a rack-and-pinion mechanism for adjusting the sash; and the object of the present invention is to provide a new and improved means for locking the sash at any predetermined position.

To this end the invention consists in the combination and arrangement of parts, as will be hereinafter more fully described, shown in the accompanying drawings, and particularly pointed out in the appended claim.

In the drawings, Figure 1 is an elevation of a portion of a window sash and frame having the improvements applied thereto. Fig. 2 is an elevation with the face-plate of the device removed. Fig. 3 :is a longitudinal sectional view on the line so so, Fig. 2. Fig. 4 is a transverse sectional View on the line y y, Fig. 2. Fig. 5 is a detail perspective view of the operating thumb-lever. Fig. 6 is a detail perspective view of a modiiied form of operatinglever. y

Corresponding parts are designated by like reference characters in all thefigures of the drawings.

Referring to the accompanying drawings, 1 designates a window-frame, and 2 awindowsash, both of which are of common or ordinary construction. As best shown in Figs. 2 and 4, one of the window-jambs 3, preferably the left-hand jamb, is provided with a longitudinal groove 4, extending the entire length of its exposed face, against which the sash is adapted to slide. Fitted within this groove is a fixed rack 5, having the outer edges of its teeth ush with the face of the jamb, so as not to interfere with the movement of the sash.

In the outer face of the sash, next to the rack, is provided a recess 6, which opens out through the outer edge of the sash, and mortised in the edge of the sash is a plate 7, having a lateral extension 8 intermediate of its ends, which is adapted to fit snugly within the recess 6, dat against the back thereof. Two transversely-aimed openings 9 and 10,

respectively, are provided in the extension of the plate 7, and the latter is cut away, as at 11, in its upper edge and opposite the extension 8 for the purpose of exposing a portion of the rack to the interiorof the recess 6. Mounted in the round opening 9, which is next to the plate 7, is a pinion 12, adapted to be in mesh with the rack 5. The inner journal 13 is formed integral with the pinion and is provided with an annularshoulder 14, which bears against the outer face of the extension of the plate 7, and this journal is comparatively long to permit of the recess 6 being deep enough to accommodate the means for locking the pinion, as will be hereinafter more fully described. A face-plate 15 is fastened to the face of the Window-sash, covering the recess 6 and provided with an opening 16,` which is adapted to receive the outer short integral journal 17 of the pinion 12, and thereby mount the same in position. The outer edge of the groove formed in the jamb 3 is cut away, as at 12, near the lower endl of the groove, as shown in Fig. 2, so that the pinion may be placed in position, and then the frame 1 is secured in place, covering up the cutaway portion.

The ratchet mechanism for locking the pinion is shown in detail in Fig. 5 and comprises a bowed lever 18, having at its upper end a transverse fulcrum-iug 19, which is provided with a notch 20 in its outer edge. At its opposite lower end the lever is formed into an operating thumb-piece 21, and intermediate of its ends is provided a transverse stern 22, which extends in the same direction as the fulcrum-lug and is longer than the latter. This stem is provided at opposite sides thereof and intermediate of its ends with the alined hooked ratchet-teeth 23, which extend longitudinally of the lever and are adapted to normally engage the teeth of pinion l 2 to hold the same locked against turning. The fulcrum-lug 19 is received within an opening 24, formed in the face-plate near its upper end and to one side thereof opposite the opening for the pinion, and the notch 20 embraces the upper edge of the opening 24, whereby the lever is fulcrumed upon' the face-plate, and the stem 22 is slidably received through an opening 25, the ratchet-teeth 23 being located IOO .volved.

beyond the inner face of the plate and the lever upon the outer face thereof. It will be noted that the face of the window-sash above the recess 6 therein and beneath1 the faceplate is provided with a notch 26 to receive the inner end of the fulcrum-lug, and the back of the recess G is provided with an opening 27 to accommodate the endof the stem 22 at the inward limit of its movemen t. Acoiled spring 28 encircles the stern 22, bearing at its inner end against the back of the recess 6 and-at its other end against the inner side of the ratch et-teeth 23, whereby the lever is normally held at its extended position and the ratchet-teeth are heldin engagement with the pinion to lock` the same.

The parts being assembled, as hereinbefore described, to raise the window-sash the lever 18 is operated by pressing inward upon the thumb-piece 2l, whereby the ratchet-teeth 23 are carried inward out ot engagement with the pinion, and. the latter is free to be re- The window-sash can then be raised as usual, the pinion traveling upon the rack, and when the sash has been raised to the desired height the pressure is relieved from the thumb-piece and the spring will force the lever outward and again engage the ratchetteeth with the pinion, and the sash will be held at the adjusted position.

The lever 18 may be dispensed with, as shown in Fig. 6, and the stem 22 provided with a button or head 29 to receive the pressure of the hand of the operator for disengaging the ratchet teeth from the pinion. When this form is used, the stem should be angular in cross-section, and the opening 25, which receives the stem, should also be angular in form to prevent the stem from turning when the teeth thereof are disengaged from the pinion.

It will be noted that the present device may be applied to any window-sash without altering the construction thereof, it being simply necessary to provide a recess in the face of the sash to receive the pinion and a groove in one of the jambs to receive the rack. All of the parts are inclosed within the side rail of the sash and are therefore not subject to displacement nor. damage. The device is preferably mounted near the lower left-hand side of the sash, is comparatively small and light, and forms an effective sash-lock when the sash is closed.

Changes inthe form, proportion, size, and the minor details ofY construction within the scope of the appended claim may be resorted to without departing from the spirit or sacriticing any of the advantages of this invention.

Having thus described the invention, what I claim isln a sash-fastener, the combination of a rack, a pinion in mesh therewith, a casing inclosing the pinion, a face-plate for the casing, and provided with a pair of opposite openings, a stem slidable through one of the openings, and provided with teeth in detachable engagement with ,the pinion, and an operat ing-lever connected to the stem, and having a fulcrum-lu g received within the other opening in the face-plate, and provided with a notch embracing one edge of said opening, substantially in the manner shown and described.

In testimony that I claim the foregoing asv Witnesses:

A. K. STONE, JESSE RAUSBERRY. 

